On-Vehicle Inspection

1GR-FE INTAKE: INTAKE SYSTEM: ON-VEHICLE INSPECTION

1. INSPECT INTAKE AIR CONTROL FUNCTION





(a) Remove the V-bank cover.

(b) Warm up the engine.

(c) Turn the ignition switch to OFF.

(d) Connect the Techstream to the DLC3.

(e) Start the engine and allow it to idle.

(f) Turn the Techstream on.

(g) Enter the following menus:

Select: Powertrain / Engine and ECT / Active Test / Activate the VSV for Intake Control / ON.

(1) Check that the intake air control valve is pulled out.

If the intake air control valve does not operate, replace the VSV for ACIS or intake air surge tank.

(h) Enter the following menus:

Select: Powertrain / Engine and ECT / Active Test / Activate the VSV for Intake Control / OFF.

(1) Check that the intake air control valve is returned to its original position.

If the intake air control valve does not operate, replace the VSV for ACIS or intake air surge tank.

(i) Enter the following menus:

Select: Powertrain / Engine and ECT / Data List / Engine Speed, Throttle Sensor Volt %, ACIS VSV.

(1) While depressing the accelerator pedal so that the tester display "Throttle Sensor Volt %" is 65 % or more and the engine is running at a speed of 2,200 to 4,100 rpm, check that the VSV is ON.

If the intake air control valve does not operate, replace the Vacuum Switching Valve No. 1.

(j) Release the accelerator pedal when in the condition in step (1) or when the engine is idling, and check that the VSV is OFF.

If the intake air control valve does not operate, replace the Vacuum Switching Valve No. 1.

2. INSPECT INTAKE AIR CONTROL VALVE





(a) Remove the V-bank cover.

(b) Using a 3-way connector, connect a vacuum gauge to the actuator hose.

(c) Start the engine.

(d) While the engine is idling, check that the vacuum gauge needle momentarily fluctuates up to approximately. 39.9 kPa (300 mmHg, 11.8 in.Hg). (The actuator rod is pulled out.)

If the intake air control valve does not operate, replace the intake air surge tank.

(e) Rapidly depress the accelerator pedal to the fully open position and check that the vacuum gauge needle points to 0 kPa (0 mmHg, 0 in.Hg). (The actuator rod is returned to its original position.)

If the intake air control valve does not operate, replace the intake air surge tank.